Diffuser



FIG. 1 is a perspective front view of a diffuser, showing our new design;

FIG. 2 is a perspective rear view of the diffuser

FIG. 3 is a front view of the diffuser

FIG. 4 is a back view of the diffuser

FIG. 5 is a right side view of the diffuser;

FIG. 6 is a left view of the diffuser

FIG. 7 is a top view of the diffuser; and,

FIG. 8 is another perspective front view of the diffuser. 

CLAIM The ornamental design for a diffuser, as shown and described. 